Coin-controlled lock.



Patented Dec. 1, 1908.

J. SMITH & R. C. HOPKINS. COIN CONTROLLED LOGK. APPLICATION FILED Falls.1908.

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JOEL SMITH AND ROLLIN O. HOPKINS, OF BATAVIA, ILLINOIS. I

COIN-CONTROLLED LOCK.

To all whom it may concern:

Be 1t known that we, J OEL SMITH and ROLLIN C. HOPKINS, citizens of theUnited States, residing at Batavia, county of Kane, and State ofIllinois, have invented certain new and useful Improvements inCoin-Controlled Locks, of which the following is a specification.

Our invention relates to looks, and particularly to coin controlledlooks.

The object of our invention is to provide a lock especially adapted forlockers and similar uses, which can only be operated to lock the doorafter having deposited a coin or slug therein, and in which the key canonly be removed. after the bolt is driven to lock the door.

A further object of our invention is to provide a look as mentioned,which cannot be locked a second time, after having been looked andunlocked, without depositing a second coin or slug.

A further object of our invention is to provide a device as mentionedwhich shall be of simple construction, of low cost to manufacture andone which shall not readily get out of order.

A further object of our invention is to provide a lock characterized asabove which may be readily applied to any door and adapted for use withalmost any style look.

Other objects will appear hereinafter.

\Vith these objects in view our invent-ion consists generally in a lockhaving a reciprocating bolt, a pin normally locking said bolt againstreciprocation, means operable by a coin or slug for disengaging the pinfrom the bolt, said means being further operable by the driving of thebolt, for depositing the coin.

Our invention further consists in a device characterized as mentioned,in combination with a stop arranged behind the keyhole to prevent theremoval of the key from the look when the bolt is retracted.

Our invention further consists in various details of construction andarrangements of parts all as will be hereinafter fully described andparticularly pointed out in the claims.

Our invention will be more readily understood by reference to theaccompanying drawings forming a part of this specification and in which,

Figure 1 is an elevation of a lock embodying our invention in itspreferred form, illus- Specification of Letters Patent.

Application filed February 13, 1908r Patented Dec. 1, 1908.

Serial No. 415,650.

trating the same secured to a door, and with a portion of the casingremoved, and Fig. 2 is a similar detail view illustrating the parts inthe positions they assume after the coin is inserted.

Referring to the drawings, 1 indicates a portion of the door and 2 thecasing of a lock secured thereto. 3 indicates the bolt of the lock whichmay be of any ordinary or preferred form and operated by the key, 4:.Behind the keyhole, 5 we arrange a stop, 6 for the key. It is obviousthat the key cannot be removed from the lock except after the bolt isdriven to lock the door, as any movement of the key in one directionwill drive the bolt and its movement in the opposite direction isarrested by the stop before reaching the keyhole.

Pivotally mounted as at 7 above the lock is a three armed lever, 8. Tothe end of one arm, 8 of the lever is connected a pin, 9, the end of;which enters a hole, 10 in the bolt, 3, when the. lever is in normalposition. The pin, 9'extends through a hole, 11 in the top of thecasing, 2, and it is evident that as long as the end of the pin is inthe hole, 10 the bolt cannot be reciprocated to lock the door.

Extending in the opposite direction from the arm, 8 is a long arm, 8,the end of which extends into the coin chute, 12. When a coin isinserted it rests upon the end of the arm, 8 and the weight of the coinswings the lever into the position shown in Fig. 2, withdrawing the pin,9 from the hole, 10, after which the bolt may be freely reciprocated.The initial downward movement of the arm 8" is limited by the third arm,8' which extends into a slot, 13 in the flange, 14 formed upon the bolt,3. The slot, 13 is but long enough to permit sufiioient movement of thelever, 8 to withdraw the pin, 9 from the hole, 10, the end walls, 13 13of the slot serving as stops to limit the movement of said lever.

Before the coin is inserted, a weight, 15 on the arm 8 holds the arm 8in engagement with the stop, 13 and when the coin is resting upon thearm, 8 it overbalances the weight 15 and brings the arm 8' intoengagement with the stop, 13". The limited initial movement thus allowedto the arm, 8 is not sufficient to permit the coin to drop, but as thebolt is reciprocated or driven to lock the door, the arm, 8 is permittedfurther movement, as it is obvious, this further movement causing theend of the arm, 8 to drop a sufficient distance below the bottom edge,12 of the side Wall of the chute, to drop the coin into the coinreceptacle, 16. After the bolt is driven the key may be removed from thelook. When the arm, 8 is relieved of the weight of the coin, the weight,15 tends to return the lever, 9 to normal position, but its movement islimited by the arm, 8 and the stop, 13. When the bolt is retracted tounlock the door, the pin, 9 drops into the hole, 10 securely locking thebolt against further reciprocation until another coin is dropped intothe chute.

17 indicates a casing secured to the door and adapted to cover thecomplete mechanism and to contain the coin receptacle, 16 which may belocked therein in any suitable manner. It is obvious that the casing, 17and the casing 2 may be made integrally if desired.

From the foregoing description it will be seen that the device may beapplied to any door and used with almost any style of lock having areciprocating bolt. It is also obvious that the device is particularlyadapted for use upon doors of lockers in gymnasiums and other similarplaces.

Having described our invention what we claim as new and desire to secureby Letters Patent is:

1. In a device of the class described, a lock having a reciprocatingbolt, in combination with a lever pivotally mounted adjacent to saidbolt, a pin connected to one end of said lever and normally locking saidbolt against reciprocation, a coin chute, the opposite end of said leverfrom said pin extending into said chute, forming a stop for the coin,and a suitable connection between said lever and said bolt for limitingthe initial movement of the former and for further moving said lever asthe bolt is driven, as and for the purpose specified.

2. In a device of the class described, a lock having a reciprocatingbolt, in combination with a coin chute, a lever pivotally mountedadjacent to said bolt and having one end ex tending into said chute, apin connected to the opposite end of said lever and normally lockingsaid bolt against reciprocation, a third arm on said lever and a pair.of stops on said belt for said third arm, as and for the purposespecified.

3. In a device of the class described, a lock with a coin clutch, alever pivotally mounted above said bolt and having one end extendinginto said chute, a pin pivotally connected to the opposite end of saidlever and normally locking said bolt against reciprocation, said boltbeing provided with an aperture to receive the end of said pin, alongitudinal rib on said bolt and a third arm on said lever extendingdownwardly, and said rib being apertured to receive the end or" saidthird arm and forming stops for the same, substantially as described.

4. In a device of the class described, a lock comprising a case and areciprocating bolt, in combination with a coin chute, a lever pivotallymounted above said case and having one end extending into said chute, apin pivotally connected to the opposite end of said lever and normallylocking said bolt against reciprocation, said bolt and said case beingapertured to receive said pin, a third arm extending from said leverinto said case, said case being slotted to receive the same, and meanson said bolt for limit ing the initial movement of said arm and therebysaid lever, substantially as described.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses:

JOEL SMITH. ROLLIN G. HOPKINS.

WVitnesses:

HELEN F. LILLES, ARTHUR A. OLSON.

having a reciprocating bolt, in combination

